Clyde King is building two HO scale Southern Pacific Alco RSD-5s units. The shells are Stewart RS-3 Phase II, which also work for the RSD-5 Phase II units such as these. The drive is from Hobbytown, which actually sounds like Alcos when you run 'em... no need for a sound system. The tall "garbage can" type spark arrestor stack is made from a brass etching Clyde had made, with Kemtron screen material used on top. I also have a part casting available for the stack, see http://www.pbase.com/espeef5/alco_stack for photos.
I'll post photos of the units as additional work progresses. Meanwhile, the pilots are not yet affixed, several other things are also "work-in-progress". Both will be painted in Espee's sharp looking Black Widow paint scheme, based on 8x10 b&w Stan Kistler photos Clyde has of two RSD-5s with the spark arrestor stacks.
UPDATE 5/13/10: The units are nearly finished and will soon be ready for paint. See photos #22-40 for most recent progress images.
UPDATE 1/1/11: Added photos of the two painted units #5295 and 5301. Note there are slight differences in handrail painting between the two... these based on actual photos Clyde worked from. The locos will be lightly weathered and have glass installed in the windows to complete the project.